:root {
    --primary: #166edb;
    --primary-dark: #0a4087;
    --secondary: #28c8b2;
    --text: #333333;
    --light-bg: #f4f8fb;
    --white: #ffffff;
    --gray: #6b7280;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Arial, sans-serif;
    background: var(--light-bg);
    color: var(--text);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
}

.network-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    opacity: 0.8;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    position: relative;
    z-index: 1;
}

/* Header & Navigation */
header {
    background-color: rgba(255, 255, 255, 0.95);
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
}

.logo {
    font-size: 22px;
    font-weight: bold;
    color: var(--primary);
    text-decoration: none;
    display: flex;
    align-items: center;
}

.logo span {
    color: var(--secondary);
}

.nav-links {
    display: flex;
    list-style: none;
}

.nav-links li {
    margin-left: 30px;
}

.nav-links a {
    text-decoration: none;
    color: var(--text);
    font-weight: 500;
    transition: color 0.3s;
    font-size: 0.95rem;
}

.nav-links a:hover {
    color: var(--primary);
}

.btn {
    display: inline-block;
    padding: 10px 25px;
    background: var(--primary);
    color: var(--white);
    font-size: 0.95rem;
    font-weight: 500;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    text-align: center;
}

.btn:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(21,101,192,0.2);
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--primary);
    color: var(--primary);
}

.btn-outline:hover {
    background: var(--primary);
    color: var(--white);
}

/* Hero Section */
.hero {
    padding: 160px 0 100px;
    position: relative;
    overflow: hidden;
}

.hero-content {
    max-width: 700px;
    margin: 0 auto;
    text-align: center;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 20px;
    color: var(--primary);
    font-weight: 600;
    background: linear-gradient(90deg, var(--primary) 0%, var(--secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    line-height: 1.2;
}

.hero h1 span {
    color: var(--secondary);
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    color: var(--gray);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-buttons {
    display: flex;
    gap: 15px;
    margin-top: 30px;
    justify-content: center;
}

.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in.active {
    opacity: 1;
    transform: translateY(0);
}

/* Features Section */
.section {
    padding: 80px 0;
    position: relative;
}

.section-title {
    text-align: center;
    margin-bottom: 60px;
}

.section-title h2 {
    font-size: 2.5rem;
    color: var(--primary);
    margin-bottom: 15px;
    font-weight: 600;
}

.section-title p {
    font-size: 1.2rem;
    color: var(--gray);
    max-width: 700px;
    margin: 0 auto;
}

.features {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 30px;
}

.feature-card {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 10px;
    padding: 30px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
    transition: all 0.3s ease;
    width: 350px;
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.1);
}

.feature-icon {
    background: var(--light-bg);
    width: 70px;
    height: 70px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    color: var(--primary);
    font-size: 28px;
    position: relative;
    overflow: hidden;
}

.feature-icon::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(22, 110, 219, 0.1) 0%, rgba(40, 200, 178, 0.1) 100%);
    top: 0;
    left: 0;
    z-index: 0;
}

.feature-icon i {
    position: relative;
    z-index: 1;
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--primary);
}

.feature-card p {
    color: var(--gray);
    margin-bottom: 0;
}

/* How It Works */
.how-it-works {
    background-color: rgba(244, 248, 251, 0.7);
    position: relative;
}

.steps {
    display: flex;
    justify-content: space-between;
    margin-top: 50px;
    flex-wrap: wrap;
}

.step {
    text-align: center;
    width: 280px;
    margin: 0 auto 30px;
    background: rgba(255, 255, 255, 0.95);
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
    transition: all 0.3s ease;
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.step:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.1);
}

.step-number {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: var(--white);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-weight: bold;
}

.step h3 {
    margin-bottom: 15px;
    color: var(--primary);
}

/* Demo Visual Section */
.demo-visual {
    background-color: var(--light-bg);
    padding: 100px 0;
}

.demo-section {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
    margin-top: 50px;
}

.demo-img-container {
    position: relative;
    overflow: hidden;
    border-radius: 8px;
    margin: 20px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.demo-img {
    width: 100%;
    display: block;
    transition: transform 0.3s ease;
}

.demo-img:hover {
    transform: scale(1.02);
}

.demo-badge {
    position: absolute;
    bottom: 30px;
    right: 30px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: white;
    padding: 15px 25px;
    border-radius: 8px;
    font-weight: bold;
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
    z-index: 2;
}

/* Use Cases */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.project-card {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
    transition: all 0.3s ease;
    height: 100%;
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.1);
}

.project-image {
    height: 200px;
    width: 100%;
    object-fit: cover;
}

.project-content {
    padding: 25px;
}

.project-content h3 {
    margin-bottom: 15px;
    color: var(--primary);
}

.project-content p {
    color: var(--gray);
    margin-bottom: 20px;
}

.project-link {
    display: inline-block;
    padding: 8px 16px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: var(--white);
    text-decoration: none;
    border-radius: 5px;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.3s ease;
}

.project-link:hover {
    box-shadow: 0 5px 15px rgba(21,101,192,0.3);
    transform: translateY(-2px);
}

/* CTA Section */
.cta {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: var(--white);
    text-align: center;
    padding: 80px 0;
    position: relative;
    overflow: hidden;
}

.cta::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.1'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    opacity: 0.1;
}

.cta h2 {
    font-size: 2.5rem;
    margin-bottom: 20px;
    font-weight: 600;
}

.cta p {
    font-size: 1.2rem;
    max-width: 700px;
    margin: 0 auto 40px;
    opacity: 0.9;
}

.cta .btn {
    background: var(--white);
    color: var(--primary);
    font-size: 1.2rem;
    padding: 15px 40px;
    font-weight: 600;
}

.cta .btn:hover {
    background: rgba(255,255,255,0.9);
    color: var(--secondary);
}

/* Footer */
footer {
    background: rgba(255, 255, 255, 0.95);
    padding: 60px 0 30px;
    position: relative;
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
}

.footer-content {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    margin-bottom: 40px;
}

.footer-column {
    width: 250px;
    margin-bottom: 30px;
}

.footer-column h3 {
    font-size: 1.2rem;
    margin-bottom: 20px;
    color: var(--primary);
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 10px;
}

.footer-links a {
    text-decoration: none;
    color: var(--gray);
    transition: color 0.3s;
}

.footer-links a:hover {
    color: var(--primary);
}

.copyright {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(0,0,0,0.05);
    color: var(--gray);
    font-size: 0.9rem;
}

/* Mobile Menu */
.mobile-menu-btn {
    display: none;
    background: transparent;
    border: none;
    cursor: pointer;
    font-size: 24px;
    color: var(--primary);
}

/* Responsive */
@media (max-width: 1024px) {
    .hero {
        padding: 120px 0 80px;
    }
    
    .hero h1 {
        font-size: 3rem;
    }
    
    .step {
        margin-bottom: 30px;
    }
}

@media (max-width: 768px) {
    .mobile-menu-btn {
        display: block;
    }
    
    .nav-links {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 100%;
        height: auto;
        background: rgba(255, 255, 255, 0.95);
        flex-direction: column;
        padding: 20px 0;
        box-shadow: 0 5px 10px rgba(0,0,0,0.1);
        transition: left 0.3s ease;
        backdrop-filter: blur(5px);
        -webkit-backdrop-filter: blur(5px);
    }
    
    .nav-links.active {
        left: 0;
    }
    
    .nav-links li {
        margin: 15px 0;
        width: 100%;
        text-align: center;
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .section-title h2 {
        font-size: 2rem;
    }
    
    .feature-card {
        width: 100%;
    }
    
    .steps {
        flex-direction: column;
    }
    
    .footer-column {
        width: 100%;
        margin-bottom: 40px;
    }
}

/* Contact Form */
.contact-form {
    max-width: 600px;
    margin: 40px auto 0;
    background: rgba(255, 255, 255, 0.15);
    padding: 30px;
    border-radius: 10px;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

.form-group {
    margin-bottom: 20px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    background: rgba(255, 255, 255, 0.9);
    border: none;
    border-radius: 6px;
    font-size: 16px;
    color: var(--text);
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    box-shadow: 0 0 0 2px rgba(22, 110, 219, 0.3);
    background: white;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: #999;
}

.form-submit {
    text-align: center;
}

.form-submit .btn {
    background: white;
    color: var(--primary);
    padding: 12px 30px;
    font-size: 1.1rem;
    margin-top: 10px;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
}

.form-submit .btn:hover {
    background: rgba(255, 255, 255, 0.9);
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.15);
}

@media (max-width: 768px) {
    .contact-form {
        padding: 20px;
    }
    
    .form-group {
        margin-bottom: 15px;
    }
}

/* Form Message Styles */
.form-message {
    padding: 15px;
    margin-top: 20px;
    border-radius: 6px;
    text-align: center;
    font-weight: 500;
    animation: fadeIn 0.5s ease;
    transition: opacity 0.5s ease;
}

.form-message.success {
    background: rgba(76, 175, 80, 0.2);
    color: #ffffff;
    border: 1px solid rgba(76, 175, 80, 0.5);
}

.form-message.error {
    background: rgba(244, 67, 54, 0.2);
    color: #ffffff;
    border: 1px solid rgba(244, 67, 54, 0.5);
}

.form-message.fade-out {
    opacity: 0;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* EmailJS hata mesajı gizleme */
.emailjs-error {
    display: none !important;
}